update_python_build_standalone.py

#!/usr/bin/env -S uv run --script

# /// script
# dependencies = [
#   "cibuildwheel",
# ]
#
# [tool.uv.sources]
# cibuildwheel = { path = ".." }
# ///

import json
from datetime import UTC, datetime, timedelta

from _cooldown import COOLDOWN_DAYS, IGNORE_COOLDOWN

from cibuildwheel.extra import github_api_request
from cibuildwheel.util.python_build_standalone import (
    PythonBuildStandaloneAsset,
    PythonBuildStandaloneReleaseData,
)
from cibuildwheel.util.resources import PYTHON_BUILD_STANDALONE_RELEASES


def main() -> None:
    """
    This script updates the vendored list of release assets to the latest
    version of astral-sh/python-build-standalone.
    """

    # Get the latest release tag from the GitHub API
    latest_release = github_api_request("repos/astral-sh/python-build-standalone/releases/latest")
    latest_tag = latest_release["tag_name"]

    published_at = datetime.fromisoformat(latest_release["published_at"])
    if not IGNORE_COOLDOWN and datetime.now(tz=UTC) - published_at < timedelta(days=COOLDOWN_DAYS):
        print(
            f"Skipping update: latest release {latest_tag!r} was published "
            f"less than {COOLDOWN_DAYS} days ago."
        )
        return

    # Get the list of assets for the latest release
    github_assets = github_api_request(
        f"repos/astral-sh/python-build-standalone/releases/tags/{latest_tag}"
    )["assets"]

    assets = [
        PythonBuildStandaloneAsset(name=ga["name"], url=ga["browser_download_url"])
        for ga in github_assets
        if ga["name"].endswith("install_only.tar.gz")
    ]

    # Try to keep output order stable
    assets = sorted(assets, key=lambda x: x["name"])

    # Write the assets to the JSON file. One day, we might need to support
    # multiple releases, but for now, we only support the latest one
    json_file_contents = PythonBuildStandaloneReleaseData(
        releases=[
            {
                "tag": latest_tag,
                "assets": assets,
            }
        ]
    )

    with PYTHON_BUILD_STANDALONE_RELEASES.open("w", encoding="utf-8") as f:
        json.dump(json_file_contents, f, indent=2)
        # Add a trailing newline, our pre-commit hook requires it
        f.write("\n")

    print(
        f"Updated {PYTHON_BUILD_STANDALONE_RELEASES.name} with {len(assets)} assets for tag {latest_tag}"
    )


if __name__ == "__main__":
    main()